The Westfield Montgomery Mall in Maryland has turned into a relief center with hundreds lining the walls looking to plug lap tops and phones into outlets.

The weather will do little to cooperate as crews work to get power restored. From the Central Plains to the Mid-Atlantic, it's going to stay hot. The East Coast got a bit of reprieve from the heat Monday but forecasts through the week show temperatures spiking again to the 90s and 100s.

July is picking up right where June left off when 3,167 heat records were broken in the United States. On Monday, 45 states had 90 or above temperatures.

ABC News' Ginger Zee and Andy Field and The Associated Press contributed to this report.